Clutch.



1 I' BATBNTBDMARs-zl,1905. N. D. GHARD 5 W'. LODGE.'v

CLUTCH. APPLICATION FILED J'N. 3. 1905.'

No.7s5,251. i Patentedlvrarchm, 1905.

UNITED STATES PATENT OFFICE.

NICHOLAS D. CHARD AND WILLIAM LODGE, OF CINCINNATI, OHIO, AS-

SIGNORS TO THE LODGE & SHIPLEY MACHINE TOOL COMPANY, OF CINCINNATI, OHIO, A CORPORATION.

SPECIFICATION forming part of Letters PatentiNo. 785,251, dated. March 21, 1905. Applica-tien filed January 3,1905. Serial No. 239.493.

T LZ/f wwm l? 71ml/ 0071106777# sleeve-hub is xed to the spindle. The pe- Be it known that we, NICHOLAS D. CHARD .riphery of the wheel is provided with an 50 and VILLIAM LODGE, citizens of ,the .United annulargroove 14, concentric with the axis of States, residing at Cincinnati, in the county the wheel. Within this groove are placed of Hamilton and State of Ohio, have invented the expanding segments 15 and 16. Between certain new and useful Improvements in two ofthe abutting ends of these segments is Clutches, of which the following is a specifia taper plug 17, (see Fig. 4,) having one end 55 cation. projected through the periphery of the wheel Our invention relates to a frictional clutch 12 and provided With. an adjusting-nut 18.

IO adapted to be operated bya quick-shift device, By turning the nut 18 the taper plug may be and, as shown in the drawings, is applied to drawn in either direction to separate or bring a head-stock of an engine-lathe for transmittogether theabuttingends ofthe segments 6o ting power to the lathe-spindle. and 16. i

Of course the clutching mechanism may be 19 represents an arm one end of which is I5 applied to any of the machine-tools with simitixed to an expanding-pin 20, the pin 20 havla'r etcient result. ing flat sides and being inserted between the One of the objects of our Yinvention isI to 'other opposingends of the segments 15 and'16. 65

provide means for adjusting the ring-segments Within the gear-wheel 11 is a similar wheel forming a partofthe clutching mechanism to 12?, provided with a similar sleeve-hub 13a,

2O take up' lost motion or wear and which adjustfixed to the spindle.. Wheel l2a has also a ing means is so arranged as to provide ready peripheral groove 14,within which are located and convenient adjustment without dismantthe expanding segments 15 and 16. 70 ling any of the parts. Y 19 represents 'an arm similar to arm 19,

Another object ot' our invention is ,to prohaving a similar expanding-pin 20.

vide means whereby the ring-segments are Slidably located upon the abutting sleeves automatically held free from peripheral con- 13 13EL is a sleeve 21, having the groove 22 and tact With'the driven member of the clutch the cams upon opposite sides of the groove. 75 when the ring-segments are not in clutching The opposite ends of the arms 19 19u norengagement. mally bear against the cylindrical portions of .'Ihe features of our invention are more fully the periphery of the sleeve 21.

set forth in the description of the accompany- 25 represents'a shifting devicevshown as a ing drawings, forming a part of this speciyoke having the opposite pins 26 engaging S0 cation, in whichinto the groove 22 of the shifting sleeve 21.

Figurelisacentralvertical section through 27 represents the shaft for oscillating the the lathe-spindle and clutch. Fig. 2 is an en yoke 25.v One end of this shaft is projected larged section on line a fu, Fig. 1. Fig. 3 is through the head-stock and provided with an an enlarged section on linew w, Fig. 1. Fig. operating-handle 28. (See Fig. 2.) 85 4 is anenlarged section on line Fig. 1. Each of the pins' 2O 20u have Vround por- 'Fig 5 is an end View of the adjusting-wedge tions 29 upon opposite sides of the fiat sur- 40 shown in Fig. 3. Fig. 6 is an enlarged top face 30, (see Fig. 6,) the round portions jourplan view of the friction-ring tripping-lever. naling in the walls of the wheel 12-12. By

1 represents a head-stock; 2, the spindle this means the arm 19 is fulcrumed to the pe- 90 journaled therein. 4 riphery of the wheel 12 and the arm 19a is 3, 4, and 5 represent the c one of belt-pulleys similarly fulcrumed to the periphery of the loose on the spindle-sleeve 2. wheel12.

6 represents a pinion Vxed to the cone. With the sleeve 21 in the position shown in Within the open end of the cone-pulley 5 Fig. 1, midway between thegear-wheel 11 and 95 is awheel12, formed on a sleeve-hub 13, which `the cone-pulley 5, the spindle is idle. If now the sleeve be shifted toward the cone-pulley 5, the cam of the sleeve 21 engages the arm 19, raising the arm, and thereby turning the pin 20, expanding the segments, and clutching the cone-pulley to the wheel 12, and so to the spindle. A It will be understood that the segments I5 and 16 lie between the wheel 12 and the internal periphery of the cone-pulley 5. To throw' in the gear 11, the sleeve 21 is shifted toward the gearwheel 11, which clutches the gear-wheel 11 to the wheel 12, freeing the cones 3, 4, and 5 from the spindle, and so driving the spindle through the gearwheel 11.

31 represents bolts seated in the ring-segments and 16 and projecting through the wheel 12.

32 represents springs bearing against the wheel12 and the free ends of the bolts for the purpose of drawing the ring away from the driven member when not in its clutching position.

Having described our invention, we claim- 1. In combination with the spindle of a ma' chine-tool, a loose wheel thereon for driving the spindle, an internal wheel ixed to the spindle, and concentric with the first-named wheel, said internal wheel being formed with an annular grooved periphery, two frictionsegments located in said groove, an expanding device between two of the abutting ends of said segments, means for actuating the said device, and a wedge between the other two abutting ends of said segments for taking up wear and lost motion, substantially as described.

2. In combination with the spindle of a machine-tool, a loose wheel thereon for driving the spindle, an internal wheel fixed to the spindle, and concentric with the first-named wheel, said internal wheel being formed -with an annular grooved periphery, two frictionsegments located in said groove,'an expanding device between two of the abutting ends of said segments, means for actuating the said device, a wedge between the other two abutting ends of said segments for taking up wear and lost motion, and bolts taking through said annular periphery and into said segments holding them slightly movable in position, substantially as described.

In testimony whereof we have hereunto set our hands.

NICHOLAS D. CHARD. WILLIAM LODGE. Witnesses:

OLIVER B. KAISER, LuisE BECK. 

